The Manhattan Project was a top-secret project conceived by various scientists, following the theory developed by Albert Einstein, that occurred near the end of World War II. The Manhattan Project gave birth to the new age we live in : the nuclear age.

a sexual act in which a man has anal sex with a female, spits on her back making her believe he "ejaculated" and as she turns around the man turns around simutaniously and shits in her face
(must have diarrhea in order to preform correctly)

i pulled a Manhattan Project on my wife last night...boy was she pissed off